Invention Grant
US08129867B2 RF AC/DC coupling circuit using general purpose solid-state relay
有权
RF AC / DC耦合电路采用通用固态继电器
- Patent Title: RF AC/DC coupling circuit using general purpose solid-state relay
- Patent Title (中): RF AC / DC耦合电路采用通用固态继电器
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Application No.: US12410127Application Date: 2009-03-24
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Publication No.: US08129867B2Publication Date: 2012-03-06
- Inventor: Zaher G. Harb , Mark Whittington
- Applicant: Zaher G. Harb , Mark Whittington
- Applicant Address: US TX Austin
- Assignee: National Instruments Corporation
- Current Assignee: National Instruments Corporation
- Current Assignee Address: US TX Austin
- Agency: Meyertons Hood Kivlin Kowert & Goetzel, P.C.
- Agent Jeffrey C. Hood
- Main IPC: H01H47/00
- IPC: H01H47/00

Abstract:
A system and method for overcoming the parasitic elements associated with off the shelf or general purpose solid-state devices configured to operate as RF AC/DC signal coupling networks. An AC/DC signal coupling network may comprise a general purpose solid-state relay device and two inductors having values carefully chosen to compensate for the imperfections and intrinsic parasitic elements associated with the solid-state relay. The inductors may also have values carefully chosen to compensate for the parasitic elements of the neighboring or coupled circuit, and for the capacitance that is associated with the printed circuit board bond pad that is directly dependent upon the area of the pad and distance to the neighboring conductors. The inductors may cause the input path to become inductive as the signal frequency increases, and also improve the input return loss over the RF input range.
Public/Granted literature
- US20090322157A1 RF AC/DC Coupling Circuit Using General Purpose Solid-State Relay Public/Granted day:2009-12-31
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